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CCNA. CCNA (Cisco Certified Network Associate) is an entry-level information technology (IT) certification offered by Cisco Systems. CCNA certification is widely recognized in the IT industry as the foundational step for careers in IT positions and networking roles. [1][2] Cisco exams routinely change in response to evolving IT trends. [3]
In 2017, Cisco introduced new ICND1 and ICND2 exams (needed for the new CCNA Routing and Switching). ICND1: 100-105 (Interconnecting Cisco Networking Devices Part 1 v3.0) became the new exam required for CCENT. [1] With this change, CCENT became a sufficient pre-requirement for CCNA Security, CCNA Voice and CCNA Wireless. It is valid for 3 ...
The table below lists information technology initialisms and acronyms in common and current usage. These acronyms are used to discuss LAN, internet, WAN, routing and switching protocols, and their applicable organizations. [1][2][3] The table contains only current, common, non-proprietary initialisms that are specific to information technology.
IDS —Intrusion Detection System. IE —Internet Explorer. IEC —International Electrotechnical Commission. IEEE —Institute of Electrical and Electronics Engineers. IETF —Internet Engineering Task Force. IFL —Integrated Facility for Linux. IGMP —Internet Group Management Protocol. IGRP —Interior Gateway Routing Protocol.
Open Shortest Path First (OSPF) is a routing protocol for Internet Protocol (IP) networks. It uses a link state routing (LSR) algorithm and falls into the group of interior gateway protocols (IGPs), operating within a single autonomous system (AS). OSPF gathers link state information from available routers and constructs a topology map of the ...
Network socket. A network socket is a software structure within a network node of a computer network that serves as an endpoint for sending and receiving data across the network. The structure and properties of a socket are defined by an application programming interface (API) for the networking architecture. Sockets are created only during the ...
The CCIE lab exam was first introduced in 1993 with a two-day test. As there was an overwhelming demand for CCIE certification, the waiting time for taking the lab exam was at least six months. In October 2001, Cisco updated the two-day lab exam to one day by removing some of the testing measures like diagramming, IP addressing, and ...
Was formerly a two-part exam LX0-103 and LX0-104 in partnership with Linux Professional Institute. [28] Network+: accredited by ANSI in 2008. [16] The entry-level certification is used to measure skill as a network technician. [29] It expires in 3 years. [19] Certification prior to January 1, 2011, is considered good-for-life (GFL) and does not ...